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Vishay General Semiconductor - Diodes Division SMC3K54CA-M3/9A
- Part No.:
- SMC3K54CA-M3/9A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K54CA-M3/9A.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,033
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Product details
Overview
SMC3K54CA-M3/9A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 3000 W peak pulse power (10/1000 μs), 54 V stand-off voltage (VWM), 60.0–66.3 V breakdown voltage (VBR), and 87.1 V maximum clamping voltage (VC) at 34.4 A peak surge current. It protects automotive sensor signal lines and industrial MOSFET gate drivers against inductive switching transients.
For engineers reviewing the SMC3K54CA-M3/9A datasheet, SMC3K54CA-M3/9A pinout, SMC3K54CA-M3/9A application, or SMC3K54CA-M3/9A equivalent, key selection criteria include clamping performance under 10/1000 μs surge, AEC-Q101 qualification status, halogen-free RoHS-compliant construction, and compatibility with wave-soldering process constraints.
Technical Context
The SMC3K54CA-M3/9A operates as a silicon avalanche diode-based TVS, leveraging bidirectional Zener-like clamping to limit transient overvoltages across protected nodes. Its low incremental surge resistance ensures stable clamping during high-current pulses, while its fast response time (<1 ns) enables effective suppression of ESD and load-switching spikes before downstream ICs are damaged.
Designed for operation from –55 °C to +150 °C junction temperature, it meets J-STD-020 MSL Level 1 moisture sensitivity and supports lead-free reflow up to 260 °C peak. The device is not recommended for PCB bottom-side wave mounting due to thermal stress limitations inherent to its SMC package geometry and internal bond structure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 3000 W - sustains single high-energy transients without failure in automotive and industrial environments |
| Stand-off Voltage (VWM) | 54 V - maximum continuous reverse operating voltage before conduction begins |
| Breakdown Voltage (VBR) | 60.0–66.3 V at 1 mA - precise avalanche initiation threshold defining clamping onset |
| Clamping Voltage (VC) | 87.1 V at 34.4 A IPPM - actual voltage seen by protected circuit during worst-case surge |
| Junction Temperature Range | –55 °C to +150 °C - validated for under-hood automotive and high-ambient industrial use |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
SMC3K54CA-M3/9A uses the standard SMC (DO-214AB) package: a 2-terminal, surface-mount, molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional polarity means no cathode marking on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Cathode side unmarked) | Transient return path | Connected to ground or low-impedance reference; forms symmetrical clamping path with cathode |
| Cathode (Anode side unmarked) | Transient input node | Connected to protected line (e.g., CAN_H, LIN, sensor output); conducts surge current bidirectionally |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or differential signal lines (e.g., RS-485, CAN) without polarity concerns |
| 3000 W peak pulse rating | Handles high-energy transients from inductive loads (e.g., solenoid drivers, motor controllers) without degradation |
| AEC-Q101 qualification | Validates robustness for automotive applications including engine control modules and ADAS sensor interfaces |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets global environmental compliance requirements and JESD 201 Class 2 whisker resistance |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking, simplifying manufacturing logistics |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients before signal conditioning stage. Use Value: Maintains signal integrity below 87.1 V clamping threshold during 34.4 A surges, preventing ADC saturation or latch-up in downstream MCU. |
Use Scenario: Safeguarding digital enable/disable signals routed to IGBT gate drivers in variable-frequency drives subject to cross-talk and switching noise. IC Role / Device Role / Timing Role: TVS mounted at driver input pin to shunt fast-rising edge-induced spikes before logic-level translation circuitry. Use Value: Sub-1 ns response ensures clamping occurs prior to propagation delay of level-shifter ICs, preserving timing margins. |
| Telecom Line Interface | Consumer Power Adapter Feedback Loop |
Use Scenario: Shielding RS-485 transceiver data lines in outdoor telecom cabinets subjected to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional TVS placed differentially across A/B bus lines to suppress common-mode transients without disrupting DC bias. Use Value: Symmetrical 60–66.3 V VBR ensures balanced clamping, minimizing differential skew and maintaining signal eye diagram integrity. |
Use Scenario: Securing optocoupler feedback path in isolated AC/DC adapters where primary-side transients couple into secondary-side regulation loop. IC Role / Device Role / Timing Role: TVS installed across optocoupler input LED terminals to prevent false triggering from EFT bursts. Use Value: 54 V VWM allows normal 24 V feedback operation while clamping >60 V spikes, avoiding regulator instability or overvoltage shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMC3K54CAHM3/9A | AEC-Q101 qualified version; identical electrical specs but enhanced automotive reliability screening | Required for new automotive designs; same footprint and clamping behavior | Select when automotive qualification is mandatory and supply chain traceability is required |
| SMC3K51CA-M3/9A | Lower VWM (51 V) and VBR (56.7–62.7 V); 82.4 V clamping at 36.4 A | Better suited for 48 V nominal systems with tighter margin to clamping threshold | Choose when system operating voltage is ≤48 V and lower clamping headroom is acceptable |
Compared with SMC3K54CA-M3/9A, SMC3K54CAHM3/9A adds automotive qualification without altering electrical performance, while SMC3K51CA-M3/9A trades 3 V lower stand-off for improved clamping margin in 48 V architectures-neither is pin-compatible by default, but both share identical SMC package and layout.
Availability
SMC3K54CA-M3/9A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive I/O, and telecom line interface applications requiring stable component supply and long-term obsolescence management.
Supply support for SMC3K54CA-M3/9A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, high-power, and automotive-grade solutions.
The SMC3K54CA-M3/9A belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments where fast, repeatable clamping and AEC-Q101 compliance are critical.
FAQ
What is the clamping voltage of the SMC3K54CA-M3/9A at its rated peak pulse current?
The SMC3K54CA-M3/9A has a maximum clamping voltage (VC) of 87.1 V at 34.4 A peak pulse current (IPPM), measured using the standardized 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is confirmed in Vishay's official datasheet revision 13-Sep-2022, Document Number 89433.
Is the SMC3K54CA-M3/9A suitable for new automotive designs?
No-the SMC3K54CA-M3/9A is explicitly marked "Not for New Designs" in Vishay's documentation. For new automotive projects, engineers should select the AEC-Q101-qualified SMC3K54CAHM3/9A variant instead, which shares identical electrical characteristics and package but includes full automotive reliability validation per AEC-Q101.
Does the SMC3K54CA-M3/9A have polarity markings on its package?
No, the SMC3K54CA-M3/9A is a bidirectional TVS and carries no polarity marking on the SMC (DO-214AB) case. Its symmetrical construction allows installation in either orientation across protected lines, simplifying layout and reducing risk of assembly error in differential or AC-coupled applications.
What is the moisture sensitivity level (MSL) rating for the SMC3K54CA-M3/9A?
The SMC3K54CA-M3/9A is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and may be subjected to standard lead-free reflow profiles without pre-baking. This eliminates moisture-related popcorning risks and streamlines SMT manufacturing for high-volume production.
Can the SMC3K54CA-M3/9A be used in bottom-side wave soldering processes?
No-Vishay explicitly states the SMC3K54CA-M3/9A is "not recommended for PCB bottom side wave mounting." Its SMC package construction and internal thermal mass make it susceptible to cracking or delamination under direct wave solder thermal stress; reflow or selective soldering is preferred for reliable assembly.
SMC3K54CA-M3/9A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 34.4A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMC3K54CA-M3/9A FAQ
1.How can I place an order for SMC3K54CA-M3/9A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K54CA-M3/9A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMC3K54CA-M3/9A reliable?
The price and inventory of SMC3K54CA-M3/9A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC3K54CA-M3/9A is usually 5 days.
3.What payment methods are accepted for SMC3K54CA-M3/9A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K54CA-M3/9A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K54CA-M3/9A?
SMC3K54CA-M3/9A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K54CA-M3/9A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMC3K54CA-M3/9A?
For technical support, including SMC3K54CA-M3/9A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K54CA-M3/9A requirements.
6.How does Aetrix verify that SMC3K54CA-M3/9A is sourced from the original manufacturer or authorized distributors?
All SMC3K54CA-M3/9A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMC3K54CA-M3/9A meets industry standards.
7.What is the process for return or replacement of SMC3K54CA-M3/9A?
All SMC3K54CA-M3/9A units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K54CA-M3/9A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMC3K54CA-M3/9A part is unused and in its original packaging.
Return procedure for SMC3K54CA-M3/9A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC3K54CA-M3/9A Tags
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